In 2009, the most recent year for which data are available, the richest 1 percent of Americans paid 28.9 percent of their income in federal taxes, according to the Congressional Budget Office. (That includes income taxes, both individual and corporate, and payroll taxes.) Members of the middle class, defined as the middle fifth of households, paid 11.1 percent of their income in taxes.

Some of this difference in tax rates is attributable to temporary tax changes passed in response to the recent recession. But not all. In 2006, before the financial crisis, the top 1 percent paid 30 percent of their income in taxes, compared with 13.9 percent for the middle class.

These data suggest that the rich are not, as a general matter, shirking their responsibilities to support the federal government. To me, the current tax system looks plenty progressive. Others may disagree.

Steve Landsburg on the fiscal cliff. (I confess that Steve’s attitude about this “cliff,” as described in his opening paragraphs, is pretty much the same as my own. I have greatly enjoyed all-but-completely ignoring the public and political hysteria swirling now over this “cliff.”)